suppose

verb

sup·​pose sə-ˈpōz How to pronounce suppose (audio)
usually after "I" ˈspōz
supposed; supposing
Synonyms of supposenext

transitive verb

1
a
: to lay down tentatively as a hypothesis, assumption, or proposal
suppose a fire broke out
suppose you bring the salad
b(1)
: to hold as an opinion : believe
they supposed they were early
(2)
: to think probable or in keeping with the facts
seems reasonable to suppose that he would profit
2
b
: to have a suspicion of
3

Examples of suppose in a Sentence

Suppose a fire broke out. How would we escape? Just suppose for a moment that you agreed with me. Supposing he refuses to help, what do we do then? The renovations will cost much more than we originally supposed.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
For the most part, Ruben Amorim’s men beat the teams they’re ‘supposed to’, and have ways to avoid defeat against the other ‘Big Six’. The Athletic Uk Staff, New York Times, 2 Jan. 2026 The ball was not supposed to be snapped in that situation, but that was on us and the coaches. CBS News, 2 Jan. 2026 That’s what it’s supposed to be. Will Harris, Vulture, 2 Jan. 2026 Originally supposed to fly Sierra Space Dream Chaser test flight, but payload switched to an inert mass simulator because of potential Dream Chaser delays beyond October launch date. Richard Tribou, The Orlando Sentinel, 1 Jan. 2026 See All Example Sentences for suppose

Word History

Etymology

Middle English, from Anglo-French supposer, from Medieval Latin supponere (perfect indicative supposui), from Latin, to put under, substitute, from sub- + ponere to put — more at position

First Known Use

14th century, in the meaning defined at transitive sense 1a

Time Traveler
The first known use of suppose was in the 14th century

Browse Nearby Words

Cite this Entry

“Suppose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/suppose. Accessed 3 Jan. 2026.

Kids Definition

suppose

verb
sup·​pose sə-ˈpōz How to pronounce suppose (audio)
supposed; supposing
1
: to take as true or as a fact for the sake of argument
suppose a fire should break out
2
: to hold as an opinion : believe
they supposed they were on the right bus
3
: to come to a conclusion arrived at by guessing
who do you suppose will win

More from Merriam-Webster on suppose

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!